
/**
 *key 
 *
 *1 = in socket (points out)
 *2 = out socket (points in)
 *3 = cross socket
 *4 = nub socket
 *
 *5 = out arrow
 *6 = in arrow
 *7 = cross
 *8 = nub 
 */
public class key
{
    // instance variables - replace the example below with your own
    private int x;

    /**
     * Constructor for objects of class key
     */
    public key()
    {
        // initialise instance variables
        x = 0;
    }

    /**
     * An example of a method - replace this comment with your own
     * 
     * @param  y   a sample parameter for a method
     * @return     the sum of x and y 
     */
    public int sampleMethod(int y)
    {
        // put your code here
        return x + y;
    }
}
